Spoiler Level: Low
I'm not a big fan of when everyone refuses to talk to each other and do things on their own. I don't find it mysterious, I just think, wow, if these people would just talk to each other this storyline might really go somewhere. And this was definitely one of those episodes.
On the plus side, it was nice to see the Martian Manhunter in action again, and using his mental powers as well. And mentions of the JSA are always nice.